The countdown is on for the fourth edition of Wildstrubel by UTMB®!

Key facts

• 5 races ranging from 10km to 113km

• 6,500 registered runners, including 26% women

• 80 nationalities represented – top 3: France, Switzerland, Germany

• Wild NextGen – new youth race, 10km with 500m of elevation gain

• Wild Handi-Sport – dedicated race for athletes with disabilities

• Joëlette challenge – one joëlette entered in the Wild 25

• Wild Kids Ycoor & Wild Kids Grenon – two children’s races for 4 to 13-year-olds

• Live coverage of the Wild 110, Wild 50 and Wild 25 on Saturday and Sunday via https://live.utmb.world/en, Canal 9 and Swiss Sport TV

• Charity Bibs supporting 4 local associations

Association Trail Valais: the local team behind the event

Every kilometre of the course is the product of a dedicated local team working tirelessly throughout the year to bring this trail-running celebration to life. Driven by passion, solidarity and a strong sense of community, the members of Association Trail Valais have shaped a 2025 edition that promises to be truly exceptional.

Runners will take on five race formats, all awarding Running Stones:

• 100M (113km): Wild 110 – the flagship race, a complete loop of the massif, with 1,200 runners expected

• 100K (70km): Wild 70 – a three-quarter loop of the massif, with 1,000 runners expected

• 50K (53km): Wild 50 – a half loop, with 1,600 runners expected

• 20K (26km): Wild 25 – a quarter loop, with 1,700 runners expected

• 10K (10km): Wild 10 – 600 runners expected.

Spanning the cantons of Valais and Bern, the courses link five iconic Alpine destinations – Crans-Montana, Leukerbad, Kandersteg, Adelboden and Lenk – showcasing wild, unspoilt landscapes, legendary Alpine passes and pristine mountain pastures.

Spotlight on youth
New for 2025: the Wild NextGen – a 10km race with 500m of elevation gain, free of charge and dedicated to runners aged 10 to 17 – will give the next generation the perfect opportunity to experience trail running. The race will start in Crans-Montana on Saturday 20 September at 09:00.

Children aged 4 to 13 will also be in the spotlight with the Wild Kids races, staged on Friday evening just before the start of the flagship Wild 110, ensuring the whole family can be part of the event.

Full weekend programme

An inclusive and festive sporting event
Wildstrubel by UTMB® is, above all, a celebration of inclusivity and solidarity.

By choosing Charity Bibs at registration, some runners will help raise funds for four local associations – a generous initiative making a real difference to Sport Handicap Sierre, the Trail Valais Academy, Cap sur toi, and the What’s Life Project.

The Wild Handi-Sport, a 2km race for athletes with disabilities – whether running, walking, or using a wheelchair – champions accessibility in sport and encourages participation for all. Free to enter, it will welcome around 15 participants, starting from Crans-Montana on Friday 19 September at 19:30.

On Saturday 20 September at 09:15, two amputee athletes will line up in Crans-Montana to take on the Wild 10 (10km with 500m of elevation gain).

And as in 2024, a joëlette will take on the Wild 25 (26km with 1,200m of elevation gain), setting off between waves 2 and 3 at 09:50. The support crew will relay each other to convey the specially adapted chair from the Leukerbad alpine pastures to the finish in Crans-Montana – a powerful demonstration of teamwork and solidarity.

Growing economic impact for the region and its communities

In 2024, Wildstrubel by UTMB generated:

• 13,000 overnight stays (athletes and supporters)

• Over 10,000 visitors in total

• CHF 7 million in direct and indirect economic impact for the local economy

With 6,500 runners expected in 2025, the event is set to deliver even greater economic benefits to the host communities.